Bedrock geology of the Vipond Park 15-minute, Stine Mountain 7-1/2-minute, and Maurice Mountain 7-1/2-minute quadrangles, Pioneer Mountains, Beaverhead County, Montana

by Zen, E-an, 1928-2014,
Published: Department of the Interior, U.S. Geological Survey, 1988

Construction of pressure-temperature diagrams for multicomponent systems after the method of Schreinemakers--a geometric approach : a discussion of the topological relations betwee...

by Zen, E-an, 1928-2014,
Published: Department of the Interior, U.S. Geological Survey, 1966

Metamorphic mineral assemblages of slightly calcic pelitic rocks in and around the Taconic allochthon, southwestern Massachusetts and adjacent Connecticut and New York

by Zen, E-an, 1928-2014,
Published: United States Department of the Interior, Geological Survey, 1981

Bedrock geology of the Vipond Park 15-minute, Stine Mountain 7-1/2-minute, and Maurice Mountain 7-1/2-minute quadrangles, Pioneer Mountains, Beaverhead County, Montana

by Zen, E-an, 1928-2014.
Published: U.S. Dept. of the Interior, Geological Survey ; For sale by the Books and Open-File Reports Section, 1988

Taconic stratigraphic names: definitions and synonymies

by Zen, E-an, 1928-2014.
Published: U. S. Govt. Print. Off., 1964

Construction of pressure-temperature diagrams for multicomponent systems after the method of Schreinemakers : a geometric approach

by Zen, E-an, 1928-2014.
Published: U.S. Govt. Print. Office, 1966

Geologic map of the Bashbish Falls quadrangle, Massachusetts, Connecticut, and New York

by Zen, E-an, 1928-2014.
Published: U.S Geological Survey, 1966

The Taconide zone and the Taconic orogeny in the western part of the northern Appalachian orogen

by Zen, E-an, 1928-2014.
Published: Geological Society of America, 1972

Generation of magmas of the Pioneer batholith a geologically constrained thermal model

by Zen, E-an, 1928-2014.
Published: U.S. Dept. of the Interior, U.S. Geological Survey, 1996

Channel geometry and strath levels of the Potomac River between Great Falls, Maryland and Hampshire, West Virginia

by Zen, E-an, 1928-2014.
Published: Dept. of the Interior, U.S. Geological Survey, 1997

Plutons in the eastern part of the Pioneer batholith field relations and petrographic descriptions

by Zen, E-an, 1928-2014.
Published: U.S. Dept. of the Interior, U.S. Geological Survey, 1996

Metamorphic mineral assemblages of slightly calcic pelitic rocks in and around the Taconic allochthon, southwestern Massachusetts and adjacent Connecticut and New York

by Zen, E-an, 1928-2014.
Published: U.S. Govt. Print. Off., 1981

Taconic stratigraphic names : definitions and synonymies

by Zen, E-an, 1928-2014.
Published: United States Department of the Interior, Geological Survey, 1964

Studies of Appalachian geology : northern and maritime

Published: Interscience Publishers, 1968

Bedrock geologic map of Massachusetts

Published: United States Geological Survey, 1983